IP Spoofing Vulnerability in Caddy 2 Middleware by Shift72
CVE-2023-50463

6.5MEDIUM

Key Information:

Vendor

Caddyserver

Status
Caddy
Vendor
CVE Published:
10 December 2023

What is CVE-2023-50463?

The caddy-geo-ip middleware for Caddy 2 is vulnerable to IP spoofing when using the trust_header X-Forwarded-For configuration. This flaw allows attackers to manipulate the X-Forwarded-For header to forge their source IP address, potentially bypassing security measures such as the trusted_proxy directive in reverse_proxy or IP address range restrictions, undermining the integrity of traffic handling and posing significant risks to the application.

References

https://github.com/shift72/caddy-geo-ip/issues/4
https://github.com/shift72/caddy-geo-ip/tags
https://caddyserver.com/v2

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.